8381011 has 4 divisors (see below), whose sum is σ = 8386912. Its totient is φ = 8375112.

The previous prime is 8381003. The next prime is 8381047. The reversal of 8381011 is 1101838.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8381011 - 2³ = 8381003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8381311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625 + ... + 4141.

It is an arithmetic number, because the mean of its divisors is an integer number (2096728).

Almost surely, 2^8381011 is an apocalyptic number.

8381011 is a deficient number, since it is larger than the sum of its proper divisors (5901).

8381011 is a wasteful number, since it uses less digits than its factorization.

8381011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5900.

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 8381011 is about 2894.9975820370. The cubic root of 8381011 is about 203.1259784095.

Adding to 8381011 its reverse (1101838), we get a palindrome (9482849).

It can be divided in two parts, 838 and 1011, that added together give a square (1849 = 43²).

The spelling of 8381011 in words is "eight million, three hundred eighty-one thousand, eleven".